Answered: A small 78.6 W light bulb radiates…

A small 78.6 W light bulb radiates light (assume single wavelength, sinusoidal) uniformly in all directions. What is the average intensity of the light from this bulb at a distance of 2.539 m away?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter34: Maxwell’s Equations And Electromagnetic Waves

Section: Chapter Questions

Problem 77PQ

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A small 78.6 W light bulb radiates light (assume single wavelength, sinusoidal) uniformly in all directions. What is the average intensity of the light from this bulb at a distance of 2.539 m away?

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